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DBMS > Apache IoTDB vs. H2 vs. Lovefield vs. Weaviate

System Properties Comparison Apache IoTDB vs. H2 vs. Lovefield vs. Weaviate

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Editorial information provided by DB-Engines
NameApache IoTDB  Xexclude from comparisonH2  Xexclude from comparisonLovefield  Xexclude from comparisonWeaviate  Xexclude from comparison
DescriptionA lightweight IoT native database management system deployable on the device and syncing the collected data with the cloud and integrated with Hadoop and SparkFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.Embeddable relational database for web apps written in pure JavaScriptA cloud-native, realtime vector search engine integrating scalable machine learning models
Primary database modelTime Series DBMSRelational DBMSRelational DBMSSearch engine
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.42
Rank#253  Overall
#20  Time Series DBMS
Score9.83
Rank#51  Overall
#31  Relational DBMS
Score0.23
Rank#283  Overall
#133  Relational DBMS
Score0.17
Rank#295  Overall
#19  Search engines
Websiteiotdb.apache.orgwww.h2database.comgoogle.github.io/­lovefieldgithub.com/­semi-technologies/­weaviate
weaviate.io
Technical documentationwww.h2database.com/­html/­main.htmlgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdweaviate.io/­developers/­weaviate/­current
DeveloperApache Software FoundationThomas MuellerGoogleSeMI Technologies B.V.
Initial release2018200520142017
Current release2.1.210, January 20222.1.12, February 20171.0.3, January 2021
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infodual-licence (Mozilla public license, Eclipse public license)Open Source infoApache 2.0Open Source infocommercial license available with Weaviate Enterprise
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaJavaJavaScriptGo
Server operating systemsAll OS with a Java VM (>= 1.8)All OS with a Java VMserver-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, Safari
Data schemeyesyesyesyes, maps to GraphQL interface
Typing infopredefined data types such as float or dateyesyesyesyes infostring, int, float, geo point, date, cross reference, fuzzy references
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nononono
Secondary indexesyesyesyesyes infoall data objects are indexed in a semantic vector space (the Contextionary), all primitive fields are indexed
SQL infoSupport of SQLSQL-like query languageyesSQL-like query language infovia JavaScript builder patternGraphQL is used as query language
APIs and other access methodsJDBCJDBC
ODBC
GraphQL query language
RESTful HTTP/JSON API
Supported programming languagesJavaJavaScript
Server-side scripts infoStored proceduresnoJava Stored Procedures and User-Defined Functionsnono
TriggersnoyesUsing read-only observersno
Partitioning methods infoMethods for storing different data on different nodesnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesWith clustering: 2 database servers on different computers operate on identical copies of a databasenoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsIntegration with Hadoop and Sparknonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency with synchronizing with the cloudImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynoyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDno
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyesyesyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes infousing MemoryDBno
User concepts infoAccess controlnofine grained access rights according to SQL-standardnoOpenID Connect Discovery
More information provided by the system vendor
Apache IoTDBH2LovefieldWeaviate
Typical application scenariosAs a stand-alone vector search engine, or use one of the many modules (transformers,...
» more
Key customersA ll companies that have data. ​
» more
Licensing and pricing modelsWeaviate is open-source, and free to use. We also offer Fully managed Weaviate on...
» more

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More resources
Apache IoTDBH2LovefieldWeaviate
DB-Engines blog posts

Weaviate, an ANN Database with CRUD support
2 February 2021,  Etienne Dilocker, SeMI Technologies (sponsor) 

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Recent citations in the news

The Apache Software Foundation Announces Apache® IoTDB™ as a Top-Level Project
23 September 2020, GlobeNewswire

Top 10 Apache projects in 2021, from Superset, to NuttX and Pulsar
5 January 2022, The Stack

The Apache® Software Foundation Announces Program for ApacheCon@Home 2021
17 August 2021, Yahoo Finance

The Apache® Software Foundation Welcomes its Global Community Online at ApacheCon@Home
21 September 2020, GlobeNewswire

provided by Google News

Google Lovefield Relational Query Engine
21 November 2014, iProgrammer

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SeMI Technologies’ search engine opens up new ways to query your data
22 February 2022, TechCrunch

Database technology evolves to combine machine learning and data storage
7 March 2022, VentureBeat

The History of the Weaviate Vector Search Engine
9 May 2020, hackernoon.com

Getting Started with the Weaviate Vector Search Engine
18 May 2020, hackernoon.com

Weaviate Is A Search Engine For Vector Embeddings
11 May 2020, hackernoon.com

provided by Google News

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